Bedstead corner lock



July 5 1927..

A. J. SCHULTZ BEDSTEAD CORNER LOCK Filed une 23. 1925 ATTORNEY/5 h m m Patent-ed July 5,

entree sreres E A-TENT OFF BEDSTEAD CORNER LC CK.

Application filed June 23, 1926.

This invention refers, generally, to improv-ements 1n corner locks for bedsteads adapted to securely connect between the head aiicl foot members thereof the longitudinal side or stretcherbars.

The invention has for its principal object to provide an inexpensive and yet very strong and. durable corner lock construction, whereby a rigid and secure connection of the longitudinal side or stretcher bars between, the head and foot frames of a, bed may be attained.

The invention has fora further object to provide a novel corner lock structure, the

parts of which may be produced by metal stampings subject to a novel assembled relation respectively to the corner bedposts and the ends of the side or stretcher bars and further subject, when thus assembled to a cooperative union adapted to produce a very rigid, secure and strong coupled relir tion of bedpost and side or stretcher bar iron from loose I shearing or other undesired displacenie' 'Other 0 ects oi this iuvention not at tillrtime more particularly enumerated, will he clearly understood from the following de tailed description of the same.

The invention is clearly illustrated in he 1 tnzcompanyiug drawings in Wl1icli:

F 1 is a side elevation of a hedpost.

and side or stretcher bar end respectively provided with the cooperating corner lock elements made according to this invention a5 and shown in disconnected relation; Figure 2 is a similar view showing the manner of bringing the cooperative corner 'loelt ele ments together; Figure 3 is a similar view showing-the complete linal cooperative union of said corner lock elements; Figure :t is a plan view of the parts in operative united relation: Figure 5 is a detail transverse section, taken on line 5---5 in Figure. 3; Fig;- ure (3 is a detail longitudinal sectioin taken as on line t3;t3 in Figure 4; and Figure 7 is a detail transverse section taken on line 7- --T in said Figure 8.

Similar characters of reference are one .ployed in all of the hereinabove described views, to indicate corresponding parts.

Referring now to said drawings, the rol erence character 8 indicates a bedpost of either the head or toot frame of the bedstead as the case may be, and the reference character 9 indicates 2. side or stretcher bar made of angle iron, which is -dapted to he Serial No. 117,959.

coupled to and to extend between hedposts respectively at the head and foot of the bed stead.

Secured to the bedpost 8 by rivets 10. or so any other convenient form of festening; means is a socket element. This socket ele ment is stamped from sheet metal of suit able gauge, and is so tori ed as to provide a hast-portion 11 to abut or engage against the bedpost 8 and which, if the latter is of cylindrical conformation, is transversely arcuate or curved to fit the bedpost of such form. integrally formed with said oaseportion it, so as to extend outwardly from one vertical T5 side of the seine, is a sock t plate 12, which is cut away in its upper end portion to vide an up ardly open downwardly in socket ll), bounded on it outer side oy a lightl tapered linger H. The interior "iii angle at the juncture of said. hastrportie 3 and sfieliti plate 12 is termed to pro seal. 15 the function of which \viil appear.

Secured to each end of the aide st bar 9 is an abutment plate in adapted stamped from sheet metal of suitabie'gau e Haiti abutment plate 15 is registered ag the inner face of the vertical dang e a of side bar 9. Said abutment plate is inte orally provided at its outer end with a tu-al outwardly oli' srt liutiueiu or tenon ii, the tree or edge portion oi which is dis posed to lie in the plane of said vertical llango u of said side her 5% and so as to proee jr-ct outwardly endwise from the latter; the juncture of said olisr-t lurtiuent or te mini? with the outer side of said abutment pitue 16 provides a shoulder l8 against which the 8G to he end of the side bar 9 is Siflliilttl or L'Qtl'lHiQTQil, Hard abutment plate 16 is further uitegrallv provided at its upper edge portion with it horizontal inwardly oti-vet bearing o but tress flange lll which is adapted to abut the underside ol' the luirizontal flange i) of said we side bar 2). Said abutment plate at \v" en the same is formed, is provided with rivet receiving openings accurately disposed in desired. predetermined positions, so that when the abutment plate 16 is properly positioned relative to. the side bar 9. the same wrves as a template for positioning and producingcorresponding rivet openings in the vertical ii'ane'e a of said side liar 9. This procedure assures a proper corner lock ture in connection with each end of t bar, whereby an accurate cooperate strucin with the socket element is always attained, even though there may be some slight variations in the lengths of the side bars 9.

When the registering rivet receiving open are provided in the abutment plate 16 and side bar 9, these parts are accurately: see red together in proper assembled relation by means of fastening rivets 20 and 21 which are passed therethrough. ()ne of said as 20, is provided at its outer end, projects from the outer face of the verbal flange a'of said side bar 9, with a headed coupling stud- 22 the shank 23 oi which is receivable in the socket 13 of said til:

socket plate 12; the other rivet, as 21, is provided at its outer end, which projects from. the outer itace of the vertical flange a of said side bar 9with a head 24 adapted to provide a stop orbrace adapted to cooperate with the outer side of said finger 14 of said socket plate in the manner subsequently referred to.

When assembling an end of the side bar 9 with a bedpos't 8, the outer side of the vertical a of said side bar is positioned to face the inner side of the socket plate 12,

and with the shank 23 of the coupling stud 22 alined above the socket 13 of said socket plate, as shown in Figural. When the parts are thus disposed the side bar end is moved downwardly to carry the coupling stud into the socket, as shown in Figure 2. In this position the abutment or tenon 17 of the abut ment plate 16 enters slidingly into the seat of the socket element, while the-tapered finger lei is entered siidingly between said coupling stud shank 23 and the stop head 24. ll hen the side bar 9 is thus initially positioned and united through the corner-lock devices with the bedpost 8 it is brought to final united relation by driving down the side bar end until the coupling stud shank seats itself in the bottom of the socket 13 of the socket plate 12, and the butn'ient or tenou 17 is zlully entered in the seat 15 of the latter, so as to firmly brace the end of said I side bar 9 against loosehess, play or other displacement, and thus aiding in attaining and maintaining the desired rigid union with and desired square and true alignment 7 re bar in its operative extension becen the head and foot frames of the bedad. The function of the bearing or buttress flange 19 of the abutment 16 is twofold; first it serves to squarely and truly aline the abutment plate 18 with the side bar 9, and assures the desired vertical align' ment of the butment or tenon 17 relative to the seat 15 of the socket element, and, secend, it braces and supports the side bars 9 against vertical displacement or shifting relalive to the abutment plate 16 which would tend to produce a shearing action on the rivets 20 and in "forcing the coupling stud tightly down into the socket 13 of the socaet plate 12, any tendency to spread or bend the. finger 14: which bounds the outer side of said socket 13, is obviated by reason of the stopping or bracing effect which the head. 24 of the rivet 21 offers by its engage ment with the outer edge of said finger 1e, as shown in Figure 8. It will thus be apparent that a frictional gripped relation of the socket plate relative to the coupling stud is effected, which counteracts any tendency of the engaged corner lock elements to loosen or become relatively displacedv From the above description it will be quite apparent that the present invention produces a "very simple construction of corner lock structure for bedsteads, which comprises a minimum number of parts, which, however, by reason of the novel structural features adapted to mutual cooperation, as above described, produces an exceedingly rlgid 1.1111011 and which therefore maintains said parts of the bedstead in true and square coupled relation one to another.

It am aware that some changes may be made in the arrangements and combinations of the various devices and parts, as well as in the details of the construction of the same, Without departing from the scope of this invention as set forth in the foregoing specification, and as delined in the appended claims. Hence, I do not limit my invention to the exact arrangements and combinations of the said devices and parts as described in said specification, nor do I confine myself to the exact details of the construction of parts as illustrated in the accompanying draw ings.

l claim 1. A corner lock structure for connection between a bedpost and angle-iron side bar of a bedstead, comprising an integral socket element consisting of a base portion to abut and be secured to said bedpost and a socket plate extending outwardly from one side of said base portion, said socket plate hav ing an upwardly open downwardly extend ing socket in the body thereof bounded on its outer side by a finger like member, said socket member having a vertically extending seat located in the interior angle of uncturc of said base portion and socket plate; and an abutment plate registered against the inner side of the vertical flange of said side bar, laterally spaced rivets extending through said abutment plate and side bar to secure the same together, one of said rivets terminating-at the outer face of said side bar in a headed coupling stud and the other of said rivets terminating at the outer face of said side bar in a stop head,

said abutment plate having at its outer end neeaeoo abutting the end of the latter, said tenon slidably fitting into said vertical seat of said socket element when said headed coupling stud is entered in said socket or? said socket plate, and the outer edge oi said lingerdike member abutting said stop head so as tobe held against distortion when said headed coupling stud is entered in said socket of said socket plate, 7

2. A corner lock structure for connection between a bedpost and angle-iron side bar ol a bedstead, comprising an integral socket rhnuent consisting of a base portion to abut and be secured to said bcdpost and a socket plate extending outwardly from one side of said base portion, said socket plate having an upwardly open downwardly extend ing socket in the body thereof bounded on its outer side by a finger-like member, said socket member having a vertically extending seat located in the interior angle of juncture of said base portion and socketplate; and

an abutment plate registered against the inner side of the vertical flange of said srde bur, laterally spaced rivets extending through said abutment plate and side bar to secure the same together, one of said rivets terminating at the outer iaceo'f' Said Side bar in a headed coupling stud and the other of said rivets terminating at the outer face of said side bar in a stop head, abutment plate having at its outer end a vertical oft-set tenon projecting endwise beyond and lying in the vertical plane of said side bar with its rearwz rd shoulder abutting the end of the latter, said tenon slidably fitting into said verticalseat ofsaid socket clement when said headed coupling stud is entered in said socket of said socket plate, the outer edge of said finger-like member abutting said stop head so as to be held a 'ainst distortion when. said headed couping stud is entered in said socket oi. said socket plate, and said abutment plate having an inwardly ofi-set horizontal buttress flange to engage the underside of'the-hori zontal flange of said side bar;

3. A corner, lock structure for connection between a bedpost and side bar of a bedstead, comprising an integral socket element consisting of a base portion to abut and be secured to said bedpost and a socket plate extending outwardly from one side of said base portion, said socket element having a vertically extending seat located 1n the 1nterior angle of juncture of said base portion and socket plate; and an abutment plate seemed to an end of said side bar, said abutlate having at its outer end a vertical ct irnon rojecting endwise beyond and lying in the vertical plane of said side bar,

coupling means connected with said side bar receivable by said socket plate, said tenon being receivable in said vertical seat of said socket clement when said side bar coupling means is entered in said socket plate, and

said abutment plate having an inwardly oil-r set horizontal buttress flange to engage the under side of the horizontal flange of said side bar.

A corner lock structure for connection between a bedpost and an angle-iron side bar of a bedstead, comprising an integral socket element consisting of a base portion to abut and be secured to said-bedpost and a socket plate extending outwardly from one side of said base portion, said socket plate having an upwardly open downwardly extending socket in the body thereof, said socket element having a vertically extending seat located in the interior angle of junc ture of said base portion and socket plate; and an abutment plate registered against the inner side of the vertical flange'ot' said side bar, fastening means to secure said abutment plate and sidebar together, said abutment plate having at its outer end a, vertical oil-set tenon projecting endwise beyond and lying in the vertical plane of said side bar with its rearward shoulder abutting to engage the under side of the horizontal flange of said side bar.

in testimony, that I claim the invention set forth above I have hereunto set my hand this 17th day of June, 1926.

ABRAHAM J. SCHULTZ. 

